CN218305731U - Nasal cavity atomizing administration device - Google Patents

Abstract

The utility model belongs to the technical field of medical atomization devices, and relates to a nasal cavity atomization drug delivery device, which comprises an atomizer and an injector, wherein the atomizer comprises a cover body and a rod body, and the upper part of an inner cavity of the cover body is coupled with the outer contour of the rod body; the injector comprises an outer sleeve, a core rod which is in sliding fit with the outer sleeve in the front-back direction is arranged in the outer sleeve, and a piston which is in sliding seal fit with the outer sleeve is fixed at the top end of the core rod; the periphery of the bottom of the rod body is coupled with the inner wall of the outer ring at the top of the injector outer sleeve; the atomizer is connected with the outer sleeve of the injector through a ratchet mechanism to limit the reversion of the atomizer. The utility model discloses use back nasal cavity atomizer and syringe can not reverse the dismantlement, effectively avoid reuse.

Description

Nasal cavity atomizing administration device

Technical Field

The utility model relates to a nasal cavity atomizing device of dosing belongs to medical atomization device technical field.

Background

The nasal cavity atomizing medicine feeder is one device for spraying treating fluid into nasal cavity, and has wide application in rhinitis treatment, nasal spray, etc. and its advantages are low treating risk, fast effect, less pain, etc. Because during the use direct insertion nasal cavity, it is inseparabler with the patient contact, if reuse then there is cross infection's risk but current nasal cavity atomizing administration device is difficult to effectively avoid reuse, and reuse can still be dismantled to some important spare parts especially nasal cavity atomizer etc. and this kind of medical waste of reutilization flows into market and can cause the threat to patient's health undoubtedly.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a nasal cavity atomizing device of dosing, this nasal cavity atomizing device of dosing uses back nasal cavity atomizer and syringe and can not reverse the dismantlement, effectively avoids reuse.

The nasal cavity atomization drug delivery device comprises an atomizer and an injector, wherein the atomizer comprises a cover body and a rod body, and the upper part of an inner cavity of the cover body is coupled with the outer contour of the rod body; the injector comprises an outer sleeve, a core rod which is in sliding fit with the outer sleeve in a front-back sliding manner is arranged in the outer sleeve, and a piston which is in sliding sealing fit with the outer sleeve is fixed at the top end of the core rod; the periphery of the bottom of the rod body is coupled with the inner wall of the outer ring at the top of the injector outer sleeve; the atomizer is connected with the outer sleeve of the injector through a ratchet mechanism to limit the reverse rotation of the atomizer.

The upper part of the inner cavity of the cover body is connected and fixed with the outer contour of the rod body in an interference fit manner; the top of the injector outer sleeve comprises an inner ring and an outer ring, the inner wall of the outer ring at the top of the injector outer sleeve is provided with a luer lock, the inner ring at the bottom of the rod body is sleeved on the periphery of the inner ring at the top of the injector outer sleeve, and the periphery at the bottom of the rod body is provided with threads which are connected and matched with the luer lock on the inner wall of the outer ring at the top of the injector outer sleeve; the inner cavity of the injector coat is communicated with the rod body and the cover body. During the specific use, atomizer and syringe under the initial condition are split type, when needs are treated, take out and inhale the liquid medicine with the syringe earlier, install the atomizer from overcoat top afterwards, according to the rotatory atomizer of set direction during the installation, the bottom periphery that makes the body of rod is equipped with screw thread and syringe overcoat top outer loop inner wall luer lock and is connected the cooperation, and through ratchet mechanism restriction between the overcoat of atomizer and syringe during the rotatory atomizer, guarantee that the atomizer can only the folk prescription to rotatory installation, can not reverse the dismantlement, the reuse phenomenon of atomizer has effectively been avoided.

Preferably, the inner ring of the lower part of the cover body is provided with a first ratchet groove which is annularly arranged, the outer ring of the top of the outer sleeve is provided with a first pawl, and the first ratchet groove is matched with the first pawl. When the cover body is installed and rotates in the set direction, the first pawl and the ratchet groove slightly deform for a while, chamfers are machined on the first pawl and the first ratchet groove, the cover body can smoothly rotate in place, when the cover body rotates reversely, the pawl is inserted into the first ratchet groove all the time, the cover body is prevented from reversely rotating and being detached, and the atomizer is effectively prevented from being reused.

Preferably, the inner wall of the outer ring at the top of the injector outer sleeve is provided with a second ratchet groove which is annularly arranged, the periphery of the rod body corresponding to the arrangement position of the second ratchet groove is provided with a second pawl, and the second ratchet groove is matched with the second pawl. When the cover body rotates, the cover body drives the rod body to rotate, the rod body rotates to drive the pawl to rotate, the pawl to deform slightly in the rotating process of the pawl and the ratchet groove to chamfer, the pawl to rotate smoothly and the ratchet groove to chamfer, the cover body and the rod body can rotate smoothly, the pawl to rotate reversely when the rod body rotates reversely in the year can be inserted into the ratchet groove to chamfer, and the atomizer is effectively prevented from being reused.

Preferably, the second pawls are in the shape of a bevel fan, the number of the second pawls is 2 or more, and the second pawls are uniformly distributed on the periphery of the rod body. The fan-shaped annular pawl has higher strength, can effectively avoid increasing external force to enable the second pawl to be separated from the second ratchet groove, and can only be damaged violently if the second pawl is separated from the second ratchet groove, so that the reutilization of the atomizer is further effectively avoided.

Preferably, the inner wall of the outer ring at the top of the outer sleeve corresponding to the arrangement position of the first pawl is additionally provided with a thickening block, so that the support strength of the first pawl is increased, if the first pawl is separated from the first ratchet groove, the first pawl can be only damaged violently, and the reutilization of the atomizer is further effectively avoided.

Preferably, the tail end of the outer sleeve is additionally provided with a buckle frame, the tail end of the core rod is additionally provided with an empennage, the diameter of the empennage is matched with the size of an opening of the buckle frame, the inner wall of the opening of the buckle frame is additionally provided with an inclined plane closing-in, the top surface of the empennage is inclined, and the inclined angle of the top surface of the empennage is matched with the inclined plane closing-in; the bottom surface of the empennage is planar. When the medicine liquid is sucked into the injector and the atomizer and the injector are assembled, the medicine liquid in the jacket is sprayed out of the atomizer by pushing the core rod when the medicine needs to be fed, and when the core rod is pushed to the end, the tail end of the core rod can sink into the buckle frame and cannot be pulled out without violent damage, so that the injector is prevented from being reused. The top surface of the tail wing is inclined and matched with the inclined surface closing in, so that the core rod is easy to slightly deform and slide into the buckle frame when being pushed to the tail end of the outer sleeve; when the tail end of the core rod slides into the tail end of the outer sleeve, the plane of the bottom surface of the empennage is blocked by the top surface of the inclined surface closing up, so that the core rod cannot be pulled out of the buckle frame.

Preferably, limiting rods are additionally arranged on two sides of the end part of the tail end of the core rod above the empennage; the buckle frame both sides wall adds the U type open slot, and the opening direction of U type open slot is towards the one end of keeping away from the cover body. At present, when the medicine is administrated through nasal cavities, the medicine needs to be administrated through the nasal cavities on the left side and the right side once respectively, namely, the medicine needs to be administrated twice, and the medicine dose of each time is half of the total medicine dose. However, the existing nasal administration device realizes the above functions by additionally arranging a limit card on the core rod of the syringe; the scheme has obvious defects that the syringe needs to be installed and then taken down, the operation is complicated, the syringes with different capacities need different limiting clamps, and more molds need to be opened, so that the cost is high, and the syringe can be easily taken down and can be recycled for the second time. And this patent scheme is under initial condition, two gag lever posts correspond the buckle frame between two U type open slots, once when dosing, promote the core bar, stop when the buckle frame of gag lever post card between two U type open slots, accomplish a nasal cavity and dose, rotatory core bar makes two gag lever posts correspond a U type open slot respectively afterwards, promote the core bar again afterwards, two gag lever posts insert in the U type open slot, push away to the top until the core bar, release liquid medicine is whole, the fin also slips into in the buckle frame simultaneously, accomplish the secondary and dose this moment, accomplish the dosing of another nasal cavity promptly.

Compared with the prior art, the utility model the beneficial effect who has is:

the utility model has reasonable structural design, on one hand, the nasal cavity atomizer and the injector can not be reversely disassembled after being used, thereby effectively avoiding the atomizer from being repeatedly utilized; on the other hand, the tail end of the core rod slides into the tail end of the outer sleeve, so that the syringe is effectively prevented from being reused, and finally, the product of the patent is effectively prevented from being reused; and simultaneously, two nasal cavities can be respectively dosed, and secondary dosing is realized.

Drawings

FIG. 1 is a schematic view of a nasal cavity atomizing administration device;

FIG. 2 is a schematic view of a first ratchet groove and a first pawl of the present invention;

FIG. 3 is a schematic structural view II of the nasal cavity atomizing administration device;

FIG. 4 is a schematic view of the second ratchet groove and the second pawl;

FIG. 5 is a perspective view of a nasal aerosolization delivery device;

fig. 6 is a perspective sectional view of the nasal cavity atomizing administration device of scheme two.

In the figure: 1. an atomizer; 2. an injector; 3. a core bar; 4. a piston; 5. a rod body; 6. a cover body; 7. a first ratchet groove; 8. a first pawl; 9. a luer lock; 10. a jacket; 11. a tail wing; 12. closing up the inclined surface; 13. a buckle frame; 14. a ratchet groove II; 15. a second pawl; 16. thickening blocks; 17. a limiting rod; 18. u-shaped open slot.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1-6, the nasal cavity atomizing administration device of the present invention comprises an atomizer 1 and an injector 2, wherein the atomizer 1 comprises a cover body 6 and a rod body 5, and the upper part of the inner cavity of the cover body 6 is coupled with the outer contour of the rod body 5; the injector 2 comprises an outer sleeve 10, a core rod 3 which is in sliding fit with the outer sleeve 10 in a front-back sliding manner is arranged in the outer sleeve 10, and a piston 4 which is in sliding sealing fit with the outer sleeve 10 is fixed at the top end of the core rod 3; the periphery of the bottom of the rod body 5 is coupled with the inner wall of the outer ring at the top of the outer sleeve 10 of the injector 2; the atomizer 1 is connected with the outer sleeve 10 of the injector 2 through a ratchet mechanism to limit the reverse rotation of the atomizer 1.

In this embodiment:

the ratchet mechanism between the atomiser 1 and the housing 10 of the injector 2 may be of two types,

the first scheme is as follows: the inner ring of the lower part of the cover body 6 is provided with a first ratchet groove 7 which is annularly arranged, the outer ring of the top of the outer sleeve 10 is provided with a first pawl 8, and the first ratchet groove 7 is matched with the first pawl 8. When the cover body 6 is installed and rotates in the set direction, the first pawl 8 and the first ratchet groove 7 deform slightly, chamfers are machined on the first pawl 8 and the first ratchet groove 7, the cover body 6 can rotate smoothly in place, when the cover body 6 rotates reversely, the first pawl 8 is directly inserted into the first ratchet groove 7, the cover body 6 is prevented from rotating reversely and being detached, and the atomizer 1 is effectively prevented from being reused. The thickened block 16 is additionally arranged on the inner wall of the outer ring at the top of the outer sleeve 10 corresponding to the arrangement position of the first pawl 8, so that the supporting strength of the first pawl 8 is increased, if the first pawl 8 is separated from the first ratchet groove 7, the first pawl can be only damaged violently, and the atomizer 1 is further effectively prevented from being reused.

Scheme II: the inner wall of the outer ring at the top of the outer sleeve 10 of the injector 2 is provided with a second ratchet groove 14 which is annularly arranged, the periphery of the rod body 5 corresponding to the arrangement position of the second ratchet groove 14 is provided with a second pawl 15, and the second ratchet groove 14 is matched with the second pawl 15. When the rotatory cover body 6, the cover body 6 drives the body of rod 5 rotatory, the body of rod 5 is rotatory to drive two 15 rotations of pawl, two 15 rotatory in-process pawls two 15 and two 14 ratchet grooves can take place slightly to warp and two 15 and the equal chamfer of processing in ratchet groove two 14 of pawl, guarantee that the cover body 6 and the body of rod 5 can rotate smoothly and target in place, during two 15 can insert ratchet groove two 14 of pawl when the 5 counter rotation of the body of rod of year, prevent the 5 counter rotation of the body of rod, effectively avoided the reuse of atomizer 1. The second pawls 15 are in the shape of a fan-shaped ring with an oblique angle, the number of the second pawls 15 is 2 or more, and the second pawls 15 are uniformly distributed on the periphery of the rod body 5. The fan-shaped annular pawl has higher strength, so that the phenomenon that the second pawl 15 is separated from the second ratchet groove 14 due to the increase of external force can be effectively avoided, if the second pawl 15 is separated from the second ratchet groove 14, the second pawl can be only damaged violently, and the reutilization of the atomizer 1 is further effectively avoided.

A buckle frame 13 is additionally arranged at the tail end of the outer sleeve 10, a tail wing 11 is additionally arranged at the tail end part of the core rod 3, the diameter of the tail wing 11 is matched with the opening size of the buckle frame 13, an inclined plane closing-in 12 is additionally arranged on the inner wall of the opening of the buckle frame 13, the top surface of the tail wing 11 is inclined, and the inclined angle of the top surface of the tail wing 11 is matched with the inclined plane closing-in 12; the bottom surface of the tail 11 is planar. When the medicine liquid is sucked into the injector 2 and the atomizer 1 and the injector 2 are assembled and medicine needs to be fed, the core rod 3 is pushed to eject the medicine liquid in the outer sleeve 10 from the atomizer 1, and when the core rod 3 is pushed to the end, the tail end of the core rod 3 can sink into the buckle frame 13 and cannot be pulled out due to non-violent damage, so that the injector 2 is prevented from being reused. The top surface of the tail wing 11 is inclined and matched with the inclined surface closing-in 12, so that the core rod 3 is easy to slightly deform and slide into the buckle frame 13 when being pushed to the tail end of the outer sleeve 10; when the tail end of the core rod 3 slides into the tail end of the outer sleeve 10, the plane of the bottom surface of the tail wing 11 is blocked by the top surface of the inclined surface closing-in 12, so that the core rod 3 cannot be pulled out of the buckle frame 13.

Limiting rods 17 are additionally arranged on two sides of the end part of the tail end of the core rod 3 above the tail wing 11; u-shaped open slots 18 are additionally arranged on two side walls of the buckling frame 13, and the opening direction of the U-shaped open slots 18 faces to one end far away from the cover body 6. At present, when the medicine is administrated through the nasal cavity, the medicine is administrated through the nasal cavity on the left side and the right side once respectively, namely, the medicine is administrated twice, and the medicine dose of each time is half of the total medicine dose. However, the existing nasal administration device realizes the above functions by additionally arranging a limit card on the core rod of the syringe; the technical scheme has obvious defects that the syringe needs to be installed and then taken down, the operation is complicated, the syringes with different capacities need different limiting clamps, and more molds need to be opened, so that the cost is high, and the syringe can be easily taken down and can be recycled for the second time. And this patent scheme is under initial condition, two gag lever posts 17 correspond the buckle frame between two U type open slots 18, when once dosing, promote core bar 3, stop when gag lever post 17 card is at the buckle frame between two U type open slots 18, accomplish a nasal cavity and dose, rotatory core bar 3 makes two gag lever posts 17 correspond a U type open slot 18 respectively afterwards, promote core bar 3 again afterwards, two gag lever posts 17 insert in U type open slot 18, push away to the top until core bar 3, release the liquid medicine totally, fin 11 also slides in buckle frame 13 simultaneously, accomplish the secondary at this moment and dose, accomplish the dosing of another nasal cavity promptly.

The upper part of the inner cavity of the cover body 6 is connected and fixed with the outer contour of the rod body 5 in an interference fit manner; the top of the outer sleeve 10 of the injector 2 comprises an inner ring and an outer ring, the inner wall of the outer ring at the top of the outer sleeve 10 of the injector 2 is provided with a luer lock 9, the inner ring at the bottom of the rod body 5 is sleeved on the periphery of the inner ring at the top of the outer sleeve 10 of the injector 2, and the periphery at the bottom of the rod body 5 is provided with threads which are connected and matched with the luer lock 9 on the inner wall of the outer ring at the top of the outer sleeve 10 of the injector 2; the inner cavity of the outer sleeve 10 of the injector 2 is communicated with the rod body 5 and the cover body 6. During the specific use, atomizer 1 and syringe 2 under the initial condition are split type, when needs are treated, take out and inhale the liquid medicine earlier with syringe 2, install atomizer 1 from overcoat 10 top afterwards, according to set direction rotatory atomizer 1 during the installation, the bottom periphery that makes the body of rod 5 is equipped with screw thread and 2 overcoat 10 top outer loop inner wall luer lock 9 connection cooperation of syringe, and through the ratchet restriction between atomizer 1 and syringe 2's the overcoat 10 during rotatory atomizer 1, guarantee that atomizer 1 can only the folk prescription to rotatory installation, can not reverse the dismantlement, atomizer 1's reuse phenomenon has effectively been avoided.

Claims (7)

1. A nasal cavity atomization administration device comprises an atomizer (1) and an injector (2), wherein the atomizer (1) comprises a cover body (6) and a rod body (5), and the upper part of an inner cavity of the cover body (6) is coupled with the outer contour of the rod body (5); the injector (2) comprises an outer sleeve (10), a core rod (3) which is in sliding fit with the outer sleeve (10) in the front and back is arranged in the outer sleeve (10), and a piston (4) which is in sliding seal fit with the outer sleeve is fixed at the top end of the core rod (3); the periphery of the bottom of the rod body (5) is coupled with the inner wall of the outer ring at the top of the outer sleeve (10) of the injector (2); the method is characterized in that: the atomizer (1) is connected with the outer sleeve (10) of the injector (2) through a ratchet mechanism to limit the reversion of the atomizer (1).

2. A nasal aerosolization device as claimed in claim 1, wherein: the inner ring of the lower part of the cover body (6) is provided with a first ratchet groove (7) which is annularly arranged, the outer ring of the top part of the outer sleeve (10) is provided with a first pawl (8), and the first ratchet groove (7) is matched with the first pawl (8).

3. A nasal cavity atomising drug delivery device as claimed in claim 1, characterised in that: a second ratchet groove (14) which is annularly arranged is formed in the inner wall of an outer ring at the top of the outer sleeve (10) of the injector (2), a second pawl (15) is arranged on the periphery of the rod body (5) corresponding to the position where the second ratchet groove (14) is arranged, and the second ratchet groove (14) is matched with the second pawl (15).

4. A nasal cavity atomising drug delivery device as claimed in claim 3, characterised in that: the second pawls (15) are in the shape of a bevel fan, the number of the second pawls (15) is 2 or more, and the second pawls (15) are uniformly distributed on the periphery of the rod body (5).

5. A nasal aerosolization device as claimed in claim 2, wherein: a thickening block (16) is additionally arranged on the inner wall of the outer ring at the top of the outer sleeve (10) corresponding to the arrangement position of the first pawl (8).

6. A nasally aerosolized delivery device according to any one of claims 1-4, wherein: a buckle frame (13) is additionally arranged at the tail end of the outer sleeve (10), an empennage (11) is additionally arranged at the tail end part of the core rod (3), the diameter of the empennage (11) is matched with the size of an opening of the buckle frame (13), an inclined plane closing-in (12) is additionally arranged on the inner wall of the opening of the buckle frame (13), the top surface of the empennage (11) is inclined, and the inclined angle of the top surface of the empennage (11) is matched with the inclined plane closing-in (12); the bottom surface of the tail wing (11) is planar.

7. The nasal aerosolization device of claim 6, wherein: limiting rods are additionally arranged on two sides of the end part of the tail end of the core rod (3) above the tail wing (11); two side walls of the buckle frame (13) are additionally provided with U-shaped open slots, and the opening directions of the U-shaped open slots face to one end far away from the cover body (6).

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